Showerhead



FIG. 1 is a front perspective view of a showerhead showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front face view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a right side view thereof, the opposite side being a mirror image of the side shown.

The broken line showing is included for the purpose of illustrating and forms no part of the claimed design. 

The ornamental design for a showerhead, as shown and described. 